ID   RR4_ANTAG               Reviewed;         202 AA.
AC   Q85AX4;
DT   02-FEB-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 70.
DE   RecName: Full=30S ribosomal protein S4, chloroplastic;
GN   Name=rps4;
OS   Anthoceros angustus (Hornwort) (Anthoceros formosae).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Anthocerotophyta;
OC   Anthocerotopsida; Anthocerotidae; Anthocerotales; Anthocerotaceae;
OC   Anthoceros.
OX   NCBI_TaxID=48387;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND RNA EDITING.
RX   PubMed=12527781; DOI=10.1093/nar/gkg155;
RA   Kugita M., Kaneko A., Yamamoto Y., Takeya Y., Matsumoto T., Yoshinaga K.;
RT   "The complete nucleotide sequence of the hornwort (Anthoceros formosae)
RT   chloroplast genome: insight into the earliest land plants.";
RL   Nucleic Acids Res. 31:716-721(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA], AND RNA EDITING.
RC   TISSUE=Thallus;
RX   PubMed=12711687; DOI=10.1093/nar/gkg327;
RA   Kugita M., Yamamoto Y., Fujikawa T., Matsumoto T., Yoshinaga K.;
RT   "RNA editing in hornwort chloroplasts makes more than half the genes
RT   functional.";
RL   Nucleic Acids Res. 31:2417-2423(2003).
CC   -!- FUNCTION: One of the primary rRNA binding proteins, it binds directly
CC       to 16S rRNA where it nucleates assembly of the body of the 30S subunit.
CC       {ECO:0000250}.
CC   -!- FUNCTION: With S5 and S12 plays an important role in translational
CC       accuracy. {ECO:0000250}.
CC   -!- SUBUNIT: Part of the 30S ribosomal subunit. Contacts protein S5. The
CC       interaction surface between S4 and S5 is involved in control of
CC       translational fidelity (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- RNA EDITING: Modified_positions=64 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 79 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 91 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 97 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 98 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 127 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 137 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 142 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}; Note=The nonsense codons at positions 64,
CC       97 and 142 are modified to sense codons.;
CC   -!- SIMILARITY: Belongs to the universal ribosomal protein uS4 family.
CC       {ECO:0000305}.
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DR   EMBL; AB086179; BAC55351.1; -; Genomic_DNA.
DR   EMBL; AB087443; BAC55444.1; -; mRNA.
DR   RefSeq; NP_777415.1; NC_004543.1.
DR   AlphaFoldDB; Q85AX4; -.
DR   SMR; Q85AX4; -.
DR   GeneID; 2553434; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0015935; C:small ribosomal subunit; IEA:InterPro.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   CDD; cd00165; S4; 1.
DR   Gene3D; 3.10.290.10; -; 1.
DR   HAMAP; MF_01306_B; Ribosomal_S4_B; 1.
DR   InterPro; IPR022801; Ribosomal_S4/S9.
DR   InterPro; IPR001912; Ribosomal_S4/S9_N.
DR   InterPro; IPR005709; Ribosomal_S4_bac-type.
DR   InterPro; IPR018079; Ribosomal_S4_CS.
DR   InterPro; IPR002942; S4_RNA-bd.
DR   InterPro; IPR036986; S4_RNA-bd_sf.
DR   PANTHER; PTHR11831; PTHR11831; 1.
DR   Pfam; PF00163; Ribosomal_S4; 1.
DR   Pfam; PF01479; S4; 1.
DR   SMART; SM01390; Ribosomal_S4; 1.
DR   SMART; SM00363; S4; 1.
DR   TIGRFAMs; TIGR01017; rpsD_bact; 1.
DR   PROSITE; PS00632; RIBOSOMAL_S4; 1.
DR   PROSITE; PS50889; S4; 1.
PE   2: Evidence at transcript level;
KW   Chloroplast; Plastid; Ribonucleoprotein; Ribosomal protein; RNA editing;
KW   RNA-binding; rRNA-binding.
FT   CHAIN           1..202
FT                   /note="30S ribosomal protein S4, chloroplastic"
FT                   /id="PRO_0000132532"
FT   DOMAIN          90..158
FT                   /note="S4 RNA-binding"
SQ   SEQUENCE   202 AA;  23577 MW;  A5808EEB19C458E4 CRC64;
     MSRYRGPRVR IIRRLGTLPG LTSKTPESKP SYINQSTSSR KISQYRIRLE EKQKLRFHYG
     ITERQLLKYV RIARKAKGST GQVLLQLLEM RLDNIIFRLG LAPTIPGARQ LVNHRHVLVN
     DCTVDIPSFR CKPQDVITIR DRQKSQNLMK RSRDSYEKYG IPNHLTFNSV QNIGLVNETI
     DRDWIGLKIN ELLVVEYYSR QA